I think it does depend on the situation.
If a woman just wasn't smart enough to have safe sex and she got pregnant I don't think she should be allowed to have an abortion. If a woman got raped or she would die when she would bring birth or the child would be seriously diseased, I think abortion should be allowed.
If it brings serious issues to the mother we can't tell her to deal with it and just give birth. At the end it is her body and we have no right of telling her what to do with it.
And, yes, the father should have a say in it. How unfair would it be if the mother gets abortion while the man wants a child; it's a child of them both and just because the mother carries it doesn't mean that she has more rights over their child than her husband.